China Blames Taiwanese Smugglers for Cable Damage as Taiwan Cites Intentional Sabotage

A Broken Cable and Two Competing Explanations

A three year prison sentence, two Taiwanese men accused of smuggling and a severed communications cable lie at the center of a dispute between China and Taiwan. By December 29, 2025, the February 25 damage to the link between Taiwan's main island and the Penghu Islands had become a battle over responsibility, maritime security and the protection of essential infrastructure.

The public security bureau in Weihai, in China's eastern Shandong province, accused two Taiwanese nationals, identified only by the surnames Chien and Chen, of running a smuggling operation involving the Hong Tai 58. The vessel, registered in Togo and crewed entirely by Chinese nationals, damaged the cable in February. Chinese authorities say it happened accidentally while the ship was trying to evade Taiwanese law enforcement.

Taiwan's judicial findings point to intentional damage. In June, a Taiwanese court sentenced the ship's Chinese captain, identified by his surname Wang, to three years in prison. Taiwan also views the incident as part of a wider threat from Chinese activity against its communications infrastructure, describing such pressure as grey zone warfare.

Grey zone tactics are coercive actions that remain below the threshold of armed war. Disrupting an internet connection can create economic and political pressure without the open use of military force. Beijing rejects Taiwan's accusation that the Chinese government directed the damage and has presented its smuggling investigation as an alternative explanation.

China's Taiwan Affairs Office accused Taiwan's governing Democratic Progressive Party of falsely claiming that Beijing used the Hong Tai 58 to deliberately sabotage the cable. The office said the allegation was intended to stir confrontation across the Taiwan Strait. Taiwan's Mainland Affairs Council rejected Beijing's account and demanded concrete evidence.

What Happened Off Penghu?

Taiwan's Coast Guard detected the Hong Tai 58 near the TPKM-3 undersea cable in the early hours of February 25, 2025. The cable connects the Penghu Islands with Taiwan's main island. The ship was described as dilapidated and operating under multiple names.

Coast Guard personnel warned the vessel to leave the area, but it dropped anchor. Shortly after the ship began moving, cable operators detected a break. Taiwanese authorities intercepted the Hong Tai 58 and escorted it to port for investigation.

The investigation led to different outcomes for the eight crew members. Seven were eventually returned to China without charge, while Captain Wang stood trial in Taiwan. The returned crew later became central to China's explanation of the incident.

The events unfolded over several months:

• February 25, 2025: The Hong Tai 58 was detected near the TPKM-3 cable, dropped anchor despite warnings and was intercepted after cable damage was detected.
• June 2025: A Taiwanese court sentenced Captain Wang to three years in prison for intentionally damaging the cable.
• Months after the sentencing: Weihai police announced allegations that Taiwanese men Chien and Chen ran a smuggling operation involving the vessel.
• By December 29, 2025: China and Taiwan were publicly advancing conflicting explanations of the damage.

The precise date of the Chinese police announcement was not given. The sequence matters because Beijing's public account followed the Taiwanese prosecution and relied on interviews with crew members who had returned to China.

Why the Court Found Intentional Damage

Captain Wang initially denied the charges. During the trial, he later acknowledged that he might have caused the break. His explanation was that rough waters forced him to drop anchor and that he did not realize where the cable lay.

Wang, the captain of the Hong Tai 58, described his possible role in the damage in these words:

might have broken the cable.

Prosecutors presented evidence that challenged his account. Electronic charts aboard the vessel marked the cable's location. They also pointed to the ship's movements as evidence of intent.

Taiwan's Coast Guard testified that the vessel dragged its anchor across the seabed in a zigzag pattern. A ship resting at anchor would typically circle around it as wind and water moved the hull. The testimony described a different movement, with the anchor being pulled along the seabed.

The court found Wang guilty of intentionally damaging the cable and imposed a three year sentence in June. It said the damage seriously interfered with government and societal operations and warranted severe condemnation.

Taiwan's position combines that criminal judgment with a broader security concern. The court addressed the captain's conduct, while Taiwanese authorities have described cable disruption as a means of applying pressure to the democratic island.

China's Smuggling Allegations and Taiwan's Response

Weihai's public security bureau said interviews with the seven returned crew members confirmed that the Hong Tai 58 was engaged in smuggling. Chinese authorities accused Chien and Chen of operating a syndicate that had long smuggled frozen goods into China.

Beijing's account says the ship severed the cable while attempting to escape Taiwanese law enforcement. Authorities offered a reward of 250,000 yuan, roughly $35,500, for information leading to the capture of the two alleged ringleaders. They said Chien and Chen had been wanted since 2014.

Taiwan's Mainland Affairs Council disputed the announcement and argued that the Chinese Communist Party has no jurisdiction over Taiwan. It called on Beijing to produce concrete evidence instead of conducting public relations campaigns.

The Mainland Affairs Council, the Taiwanese body responding to Beijing's claims, described the announcement as:

cross-border repression and political manipulation.

The dispute has made a damaged cable a focal point of competing political narratives. China attributes the break to smugglers trying to avoid capture. Taiwan points to a conviction for intentional damage and sees the incident within a wider pattern of pressure on its infrastructure.

Why a Cable Break Can Disrupt an Island

Undersea cables carry nearly 99 percent of the world's international data traffic. These fiber optic lines transmit information along the ocean floor, connecting networks across seas. Financial transactions, military communications and ordinary internet use all depend on those links.

Taiwan, an island of 23 million people facing geographic and political isolation, depends on 24 subsea cables: 14 international connections and 10 domestic ones. Domestic cables connect places within Taiwan's network, including offshore islands, while international cables provide connections to the outside world.

The consequences of losing those connections were visible in the Matsu Islands in early 2023. Chinese registered vessels severed two cables serving the islands, leaving residents offline for weeks. The outage demonstrated how damage to a small number of physical links could isolate a community.

Backup microwave systems restored only about 5 percent of the lost bandwidth during the Matsu disruption. Bandwidth is the amount of data a connection can carry. At that level, the backup offered only a small share of the capacity residents normally had.

Satellite connections can also provide an alternative route, but their capacity is only a fraction of what a modern economy needs. A backup may support essential communications while leaving the broader demands of businesses, government and daily internet use unmet.

Accidents, Suspicion and Slow Repairs

Between 100 and 200 undersea cable faults occur globally each year. Most result from accidents involving fishing nets, ship anchors or natural disasters. That frequency makes the circumstances of each incident central to any investigation.

Proving intent is difficult because an anchor can damage a cable during an accident or a deliberate operation. Investigators therefore examine vessel movements, charts, warnings and the conduct of the crew. In the Hong Tai 58 case, those details formed part of the evidence presented in court.

The ambiguity surrounding some incidents also makes cable disruption attractive as a grey zone tactic. A damaging act can apply pressure while leaving the affected authorities with the difficult task of identifying who was responsible and why it happened.

Repairing a break brings another challenge. Only about 80 vessels worldwide are dedicated to maintaining and expanding undersea cable infrastructure. A damaged connection may remain out of service for weeks or months if suitable ships are working elsewhere or poor weather prevents repairs.

Political tensions can make the wait longer. Regulatory requirements or direct interference can delay access for repair ships. For an island relying on a limited number of connections, the time required to restore a cable is part of the security problem, alongside the initial damage.

Other Incidents Around Taiwan and in Europe

Taiwan has experienced at least 11 cases of subsea cable breakdowns since 2023. Some were attributed to aging equipment or accidents, but Taiwanese officials and international security specialists have raised concerns about the frequency and timing of the incidents.

In January 2025, before the Hong Tai 58 incident, a vessel named the Shunxin 39 allegedly damaged the TPE cable north of Taipei. The January and February incidents added to concerns already raised by the Matsu outages.

Taiwanese authorities have also drawn attention to vessels sailing under flags of convenience. This means a ship is registered in a country different from the place associated with its ownership or financial backing. Authorities noted registrations in countries including Mongolia, Cameroon and Sierra Leone, despite links to Chinese owners or funding, and said these arrangements could help vessels avoid scrutiny.

Europe has experienced similar concerns. Undersea cable damage in the Baltic Sea increased sharply after Russia's invasion of Ukraine. In November 2024, the Chinese vessel Yi Peng 3 was suspected of severing cables connecting Finland, Germany, Lithuania and Sweden.

Those incidents have fed concern about a coordinated strategy of targeting infrastructure while keeping responsibility difficult to establish. Such operations could signal resolve and disrupt an adversary without triggering a full military response. The Baltic incidents and those around Taiwan have placed the security of maritime communications networks under closer scrutiny.

Cable Cutting Equipment and Seabed Mapping

Researchers at China's Lishui University designed an anchorlike device explicitly intended to sever submarine cables. The development has added to concern about the tools available for disrupting communications infrastructure.

Maritime security specialists described the device as optimized for depths beyond typical fishing activity. They also pointed to features that indicated a sabotage purpose rather than a commercial use.

Taiwan's Coast Guard has intercepted Chinese research vessels allegedly gathering seabed data near cable routes. Knowing the seabed and the precise location of infrastructure could support future targeting, which is why Taiwanese authorities view such activity with concern.

Beijing has dismissed cable incidents as common maritime occurrences. Taiwan's concern centers on the combination of repeated damage, reports of equipment designed to cut cables, seabed surveying and China's aggressive maritime posture. These developments have pushed cable protection beyond a routine administrative issue and into national security planning.

How Taiwan Is Watching Suspicious Vessels

Taiwan has increased patrols in the Taiwan Strait, particularly around known cable routes. Its Coast Guard is conducting surveillance around critical infrastructure 24 hours a day, supported by an automated warning system.

The system detects vessels moving slowly within one kilometer of sensitive cables. Dozens of radar operators monitor the waters and can dispatch patrol boats to intercept suspicious ships. The aim is to identify risky activity while it is happening, before a cable break becomes the first sign of trouble.

Taiwan has blacklisted 96 vessels linked to China for close monitoring and is tracking nearly 400 others that could pose a threat. The surveillance effort reflects the difficulty of watching many ships across busy waters while determining which movements require intervention.

Jenson Chien, a Coast Guard flotilla commander near the damaged cable described as TP3, used blunt language to describe the suspicious vessels:

cannon fodder, piles of scrap metal.

Chien's assessment was that such ships use minimal resources to disrupt connections and cause maximum unrest. A dilapidated vessel can still drag an anchor across a cable, while restoring the connection requires specialized equipment, personnel and time.

Repair Ships, Satellites and Shared Intelligence

Taiwan is exploring the acquisition of its own dedicated cable repair ship. It currently relies on foreign vessels, primarily based in Japan and Singapore, that can take months to arrive. A domestic repair capability would address the waiting time that can extend an outage.

Taipei is also investing in internet alternatives using satellites in low Earth orbit, known as LEO constellations. These are groups of satellites operating relatively close to Earth. Taiwan wants them to provide emergency backup for essential services when cables are damaged.

Taiwan is sharing intelligence with capitals it describes as like minded, including information on the locations of suspicious vessels as they move. This cooperation aims to expose opaque ownership structures that can hide the origins of ships involved in cable incidents.

The concerns extend beyond Taiwan. Security analysts warn that similar tactics could be used in contested regions from the South China Sea to the Arctic. The difficulty of assigning responsibility can make infrastructure disruption attractive to governments seeking to pressure an adversary without starting a war.

A coordinated attack on several cables could cripple economic activity and military command systems before open fighting began. The global cable network carries the data on which modern economies depend, yet much of it remains largely undefended beneath the sea.

For Taiwan, the practical response combines watching vessels, protecting routes, improving repair access and building backup connections. The February case shows how physical damage to a cable can become both a prolonged security concern and a diplomatic confrontation, with China and Taiwan advancing sharply different accounts of the same incident.

The Bottom Line

• The Hong Tai 58 damaged the cable connecting Taiwan's main island and Penghu on February 25, 2025.
• A Taiwanese court sentenced its Chinese captain, Wang, to three years in prison in June for intentional damage.
• China accused Taiwanese nationals Chien and Chen of running a frozen goods smuggling operation and offered a reward of 250,000 yuan, roughly $35,500.
• Taiwan rejected Beijing's allegations and demanded concrete evidence.
• Taiwan depends on 24 subsea cables and has recorded at least 11 cable breakdowns since 2023.
• During the 2023 Matsu outage, microwave backup restored about 5 percent of lost bandwidth.
• Taiwan has increased surveillance, blacklisted 96 vessels linked to China and is tracking nearly 400 others.
• Taipei is exploring a dedicated repair ship, investing in satellite backup and sharing vessel intelligence with international partners.